Question
Question: When a patient with defective ADA was treated, which of the following steps was performed for gene t...
When a patient with defective ADA was treated, which of the following steps was performed for gene therapy?
I. Lymphocytes were obtained from the patients
II. Lymphocytes are transferred to culture dishes
III. Lymphocytes were transfected with normal ADA genes
IV. The transfected cells are returned to the patients
A
All
B
Only III and IV
C
Only IV
D
SCID cannot be treated
Answer
All